- removes fetching of last 100000 blocks of token transfers from
the wallet pull loop
- fetches the last 100000 blocks of token transfers at startup
- replaces pulling by subscriptions to ethlogs for token transfers
The crash was caused by RPC calls which happened after `StopNode` call.
Implementation:
- The first suggestion was to `StopNode` only after all `.stopWatching`
calls are done, but this only lowered probability of the crash,
but did not fix the issue.
- Another suggestion was to prevent RPC calls after `StopNode` call,
but it also only lowered probability of the crash.
- So the last resort was a fix on `status-go` side
https://github.com/status-im/status-go/pull/1329,
and it actually worked.
- Advanced settings are hidden until `Statusgo.Login` is finished
This commit changes the way how/when the node is started/stopped:
1. `node` is not started on the app startup
2. When the user presses "Sign in" button the node is started
with user specific configs (`InstallationID`, custom bootnodes, etc),
and only after that `Login` call is performed.
3. When the user creates a new account, at first the node is started
with default params (the same as would be used when user signs into
the app after account creation whithout changing any setting), then
`CreateAccount` call happens, then `Login`.
4. When the user restores their account, the flow is the same as `3`
but with `RecoverAccount` instead of `CreateAccount`
5. When the user logs out the node is stopped. That's it.
There is no need to wait for `Statusgo.Login` callback in order to start
unlocking realm db: currently it is encrypted via a key which is derived
from user’s password, so we can try to unlock that DB before starting
node. That’s how password will be checked. Right after that `:home`
screen is shown, the node is started, then `Statusgo.Login` executed.
The difference in sign in duration is more noticeable on Android
devices, where `Statusgo.Login` is much slower because of PFS database
encryption.
